Home / 77,145,193.18-115,729,082.88-36,208,790.48

Finding the Fourth Proportional to 77,145,193.18, 115,729,082.88 and 36,208,790.48

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Solution

The fourth proportional to 77,145,193.18, 115,729,082.88 and 36,208,790.48 is: 54,318,486.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,145,193.18 : 115,729,082.88 = 36,208,790.48 : x
  2. Step 2: Convert to fraction form
    77,145,193.18/115,729,082.88 = 36,208,790.48/x
  3. Step 3: Cross multiply
    77,145,193.18x = 115,729,082.88 × 36,208,790.48
  4. Step 4: Simplify right side
    77,145,193.18x = 4,190,410,114,444,474.50
  5. Step 5: Solve for x
    x = 4,190,410,114,444,474.50/77,145,193.18
  6. Step 6: Final answer
    x = 54,318,486.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.